#include<stdio.h>
#include<unistd.h>

int main()
{
    pid_t id = fork();
    if(id == 0)
    {
        while(1)
        {
            printf("我是子进程，pid:%d,ppid:%d\n",getpid(),getppid());
            sleep(1);
        }
    }
    else 
    {
        printf("我是父进程，pid:%d,ppid:%d\n",getpid(),getppid());
    }

    return 0;
}
